package cn.wolfcode.shop.cloud.web.controller;

import cn.wolfcode.shop.cloud.domain.OrderInfo;
import cn.wolfcode.shop.cloud.pay.AlipayConfig;
import cn.wolfcode.shop.cloud.service.IOrderInfoService;
import com.alipay.api.AlipayApiException;
import com.alipay.api.AlipayClient;
import com.alipay.api.DefaultAlipayClient;
import com.alipay.api.internal.util.AlipaySignature;
import com.alipay.api.request.AlipayTradePagePayRequest;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Map;

@RestController
public class PayController {
    @Autowired
    private AlipayClient alipayClient;
    @Autowired
    private AlipayConfig alipayConfig;
    @Autowired
    private IOrderInfoService orderInfoService;

    @RequestMapping("payOrder")
    public void payOreder(String orderNo, HttpServletResponse response) throws AlipayApiException, IOException {
        response.setContentType("text/html;charset=utf-8");
        //设置请求参数
        AlipayTradePagePayRequest alipayRequest = new AlipayTradePagePayRequest();
        alipayRequest.setReturnUrl(alipayConfig.getReturn_url());//设置同步回调的地址
        alipayRequest.setNotifyUrl(alipayConfig.getNotify_url());//设置异步回调的地址

        //商户订单号，商户网站订单系统中唯一订单号，必填
        String out_trade_no = orderNo;
        OrderInfo orderInfo = orderInfoService.queryByorderNo(orderNo);
        //付款金额，必填
        String total_amount = orderInfo.getSeckillPrice() + "";
        //订单名称，必填
        String subject = orderInfo.getGoodName();
        //商品描述，可空
        String body = orderInfo.getGoodName();

        alipayRequest.setBizContent("{\"out_trade_no\":\"" + out_trade_no + "\","
                + "\"total_amount\":\"" + total_amount + "\","
                + "\"subject\":\"" + subject + "\","
                + "\"body\":\"" + body + "\","
                + "\"product_code\":\"FAST_INSTANT_TRADE_PAY\"}");

        String result = alipayClient.pageExecute(alipayRequest).getBody();
        PrintWriter out = response.getWriter();
        //输出
        out.println(result);

    }
    //异步回调 处理业务

    @RequestMapping("notify_url")
    public void notify_url(@RequestParam Map<String, String> params, HttpServletResponse response) throws IOException, AlipayApiException {

        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayConfig.getAlipay_public_key(), alipayConfig.getCharset(), alipayConfig.getSign_type()); //调用SDK验证签名
        PrintWriter out = response.getWriter();
        if (signVerified) {//验证成功
            //幂等性操作
            //商户订单号
            String out_trade_no = params.get("out_trade_no");
            //流水插入一条数据，订单号为主键
            //更改订单状态
            orderInfoService.changePayStatus(out_trade_no, OrderInfo.STATUS_ACCOUNT_PAID);
            out.println("success");
        } else {//验证失败
            out.println("fail");
        }
    }

    //同步回调 展示数据
    @RequestMapping("return_url")
    public void return_url(@RequestParam Map<String, String> params, HttpServletResponse response) throws AlipayApiException, IOException {
        boolean signVerified = AlipaySignature.rsaCheckV1(params, alipayConfig.getAlipay_public_key(), alipayConfig.getCharset(), alipayConfig.getSign_type()); //调用SDK验证签名
        String orderNo = params.get("out_trade_no");
        if (signVerified) {
            //重定向到商品页面
            response.sendRedirect("http://localhost/order_detail.html?orderNo="+orderNo);
        } else {
            //重定向到错误页面
            response.sendRedirect("http://localhost/500.html");
        }

    }


}
